Blackwell 'dangerously incompetent'?

Ken Blackwell's campaign for RNC chairman comes under anonymous attack. Suspects? Given what I know about South Carolina GOP politics -- there is nothing dirtier this side of Chicago than a Republican primary in South Carolina -- my suspicion would naturally fall on the Caton Dawson camp. But that's probably unfair, and certainly there is no direct evidence to support my suspicion. It could be the Duncan people or any of the other rivals. Whoever is behind it, I hate to see oppo-research smear tactics deployed in intramural combat.